Click on a day for an hourly weather forecast
The temperatures in Rialto in May are quite cold with temperatures between 9°C and 26°C, warm clothes are a must.
There is little to no rain in Rialto during May, so it’s a lot easier to explore the city. Just remember to dress in warm layers, as it can still get pretty chilly.
Our weather forecast can give you a great sense of what weather to expect in Rialto in May 2025.
If you’re planning to visit Rialto in the near future, we highly recommend that you review the 14 day weather forecast for Rialto before you arrive.
Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
---|---|---|---|---|---|---|---|
January | 18° / 5° | 2 | 29 | 0 | 50 mm | Good | Rialto in January |
February | 18° / 5° | 2 | 26 | 0 | 55 mm | Good | Rialto in February |
March | 20° / 5° | 2 | 29 | 0 | 31 mm | Good | Rialto in March |
April | 23° / 7° | 1 | 29 | 0 | 23 mm | Perfect | Rialto in April |
May | 26° / 9° | 0 | 31 | 0 | 7 mm | Perfect | Rialto in May |
June | 31° / 12° | 0 | 30 | 0 | 2 mm | Good | Rialto in June |
July | 34° / 15° | 1 | 30 | 0 | 18 mm | Ok | Rialto in July |
August | 34° / 16° | 0 | 31 | 0 | 10 mm | Ok | Rialto in August |
September | 32° / 14° | 0 | 30 | 0 | 7 mm | Good | Rialto in September |
October | 27° / 10° | 0 | 31 | 0 | 8 mm | Perfect | Rialto in October |
November | 22° / 7° | 1 | 29 | 0 | 18 mm | Good | Rialto in November |
December | 17° / 4° | 3 | 28 | 0 | 63 mm | Good | Rialto in December |